在機(jī)載SAR 的實(shí)時(shí)成像處理器中，回波信號(hào)方位向帶寬以及方位向采樣率不能很好
的滿足成像處理的要求，本文選擇ADSP-TS201 處理器芯片對(duì)回波信號(hào)在成像之前對(duì)其進(jìn)行方位向預(yù)處理。在軟件實(shí)現(xiàn)過(guò)程中充分利用此芯片的功能特點(diǎn)，使得預(yù)處理在精確度和效率上都很好的滿足了成像處理的要求。
關(guān)鍵詞：ADSP-TS201,合成孔徑雷達(dá)，方位預(yù)處理，實(shí)時(shí)成像處理器
Abstract: In an airborne SAR Real-Time Imaging System, the echo signal cannot fully
satisfy the demands of imaging as its wide bandwidth and high Pulse Repetition Frequency (PRF) in azimuth. This paper presents the design scheme of preprocessing the echo signal before imaging, which selects ADSP-TS201 as the processor. Trying to take full advantage of the DSP chip during the software design flow, the results show the good feasibility of the proposed design scheme in precision and efficiency.
Key words： ADSP-TS201,Synthetic Aperture Radar ，Azimuth Preprocessing，Real-Time
Imaging System